Anton wisnibwski



(No Model.)

A. 'SNIBWsKL PROTECTIVE HEAD COVERING 0R H001).

No. 296.499. Patented Apr. 8, 1884.1

@NVBNTOR WI'INESSES: 9. klmm ATTONEYSQ N PETERS. PhalvllthographanWashmglun. h C.

NlTED STATES ANTON \VISNIEVVSKT, OF NEVV YORK, N. Y.

PROTECTIVE HEAD-COVERlNG OR HOOD.

, SPECIFICATION forming part of Letters Patent No. 296,499, dated April8, 1884.-

To aZZ whom it may concern:

Be it known that I, Arron WIsNInwsKI, of the city, county, and State ofNewYork, have invented certain new and useful Improvements in ProtectiveHead-Coverings or Hoods, of which the following is a specification.

This invention has reference to an improved protective head-covering orhood for workmen employed in chemical factories, firemen, and others whoare compelled to enter and work in spaces 'fillcd with deleterious gasesor floating particles. I

In the accompanying drawings, Figure 1 represents a verticallongitudinal section of my improved protective head-covering or hoodshown in position for use. Fig. 2 'is a front view of the same. Fig. 3is a detail view of the interior month-plate or shield, and Fig. 4. is adetail vertical longitudinal section of the valve of the air-eductionpipe of the hood.

$imilar letters of reference indicate corresponding parts.

A in the drawings represents a protective head-covering or hood, whichis preferably made of rubber or other suitable elastic material that isimpervious to air. The hood Ais stiffened by an interior wire frame, a,of the size and contour of the head. To the lower part or neck portion,A, of the hood is applied a flexible collar, B, that is placed below thecollar and upper part of the coat. The coat is then buttoned at thefront, so that the collar B is tightly pressed on the shoulders andchest, so as to exclude air and gases. At the front of the hood A arearranged eye-openings I) Z), which are closed by glasses. Below the eyesis arranged, at the interior of the hood, a flexible mouth-plate orshield, G, that fits easily over the mouth and nose without exerting anundue pressure on the same. The plate 0 is connected with valvedairinduction and eduction tubes D D, of rubber, of which the former hasan inwardly, the latter an outwardly, opening valve (1, that is made ofa sleeve, (2, having an interior shoulder or seat, d and aspring-pressed valve-disk, d, which is pressed against the seat (1 byits spiral spring. The valve shown in Fig. 4 represents theoutwardly-opening valve of the air-eduction tube D, the valve of theair-induction tube D opening inwardly by, arranging the spring pressedvalvedisk (2* at the opposite side of the shoulder d In place of thevalve shown, any other approved valve construction may be used for theair-tubes D D. The air-tubes D D pass upward at both sides of the eyesand over the crown of the hood to the back of the same, where theinductionpipe D has afunnel-shaped terminal, D which is screened andfilled with sponge or other porous material. This porous material issoaked with chemical solutions by which the deleterious gases or fumesagainst which protection is desired are neutralized. Purifiedatmospheric air is thereby drawn in through the tube D and itsinwardly-opening valve, while the vitiated air from the lungs is forcedthrough the outwardly-opening valve of the tube 1), and the latter tothe outside.

By arranging the tubes D D at the front, top, and back of the hood A,they are entirely out of the way, and are not dangling about in front,as in firemens head-coverings heretofore in use.

By the use of the protective hood the worlc men may move about and workin an atmosphere of poisonous gases or pass through dense smoke withoutany bodily injury resulting therefrom.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A protective head-covering consisting of a hoodprovided with glass-covered eye-openings, aninterior mouthpiece, aninduction airtube connected with said mouth-piece, a valve within saidinduction air-tube adapted to antomatically open inwardly forthe'admission of air, and an eduction air-tube, also connected to saidmouth-piece, provided with a valve adapted to open outward automaticallyfor the discharge of air, substantially as described.

2. A protective head-covering consisting of a hood provided withglass-covered eye-openings, a mouth-piece below said openings, aninduction air-tube connected with said mouthpiece, having afunnel-shaped terminal providedwithfilteringmaterial,anautomaticinletvalve within said tube,'a-nd an eduction-tube, also connected to saidmouth-piece, and provided with an automatic valve adapted to openoutwardly, said tubes being passed up over the top of said hood, whichlatter is provided with means for retaining the tubes in place,substantially as described.

3. A protective head-covering comprising a hood provided withglass-covered eye-openings, an induction air-tube opening opposite themouth of said hood, provided with an automaticin1et-va1ve,'and aneduction air-tube, also connected to said hood opp osite the mouth, andprovided with an automatic outlet-valve, said tubes being passed up overthe top of said hood, which latter is provided with means for retainingthe tubes in place, substantially IO as described.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

ANTON WISNIEWSKI.

Witnesses PAUL GoEPEL, SIDNEY MANN.

